20458914840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{624509}}^1$

素因数の和:624546

約数の個数: 192

約数和(自身を含む): 81835790400

約数和(自身を除く): 61376875560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 585, 630, 728, 780, 819, 840, 910, 936, 1092, 1170, 1260, 1365, 1560, 1638, 1820, 2184, 2340, 2520, 2730, 3276, 3640, 4095, 4680, 5460, 6552, 8190, 10920, 16380, 32760, 624509, 1249018, 1873527, 2498036, 3122545, 3747054, 4371563, 4996072, 5620581, 6245090, 7494108, 8118617, 8743126, 9367635, 11241162, 12490180, 13114689, 14988216, 16237234, 17486252, 18735270, 21857815, 22482324, 24355851, 24980360, 26229378, 28102905, 32474468, 34972504, 37470540, 39344067, 40593085, 43715630, 44964648, 48711702, 52458756, 56205810, 56830319, 64948936, 65573445, 73067553, 74941080, 78688134, 81186170, 87431260, 97423404, 104917512, 112411620, 113660638, 121779255, 131146890, 146135106, 157376268, 162372340, 170490957, 174862520, 194846808, 196720335, 224823240, 227321276, 243558510, 262293780, 284151595, 292270212, 314752536, 324744680, 340981914, 365337765, 393440670, 454642552, 487117020, 511472871, 524587560, 568303190, 584540424, 681963828, 730675530, 786881340, 852454785, 974234040, 1022945742, 1136606380, 1363927656, 1461351060, 1573762680, 1704909570, 2045891484, 2273212760, 2557364355, 2922702120, 3409819140, 4091782968, 5114728710, 6819638280, 10229457420, 20458914840]

約数ペア:

[(1, 20458914840), (2, 10229457420), (3, 6819638280), (4, 5114728710), (5, 4091782968), (6, 3409819140), (7, 2922702120), (8, 2557364355), (9, 2273212760), (10, 2045891484), (12, 1704909570), (13, 1573762680), (14, 1461351060), (15, 1363927656), (18, 1136606380), (20, 1022945742), (21, 974234040), (24, 852454785), (26, 786881340), (28, 730675530), (30, 681963828), (35, 584540424), (36, 568303190), (39, 524587560), (40, 511472871), (42, 487117020), (45, 454642552), (52, 393440670), (56, 365337765), (60, 340981914), (63, 324744680), (65, 314752536), (70, 292270212), (72, 284151595), (78, 262293780), (84, 243558510), (90, 227321276), (91, 224823240), (104, 196720335), (105, 194846808), (117, 174862520), (120, 170490957), (126, 162372340), (130, 157376268), (140, 146135106), (156, 131146890), (168, 121779255), (180, 113660638), (182, 112411620), (195, 104917512), (210, 97423404), (234, 87431260), (252, 81186170), (260, 78688134), (273, 74941080), (280, 73067553), (312, 65573445), (315, 64948936), (360, 56830319), (364, 56205810), (390, 52458756), (420, 48711702), (455, 44964648), (468, 43715630), (504, 40593085), (520, 39344067), (546, 37470540), (585, 34972504), (630, 32474468), (728, 28102905), (780, 26229378), (819, 24980360), (840, 24355851), (910, 22482324), (936, 21857815), (1092, 18735270), (1170, 17486252), (1260, 16237234), (1365, 14988216), (1560, 13114689), (1638, 12490180), (1820, 11241162), (2184, 9367635), (2340, 8743126), (2520, 8118617), (2730, 7494108), (3276, 6245090), (3640, 5620581), (4095, 4996072), (4680, 4371563), (5460, 3747054), (6552, 3122545), (8190, 2498036), (10920, 1873527), (16380, 1249018), (32760, 624509)]