19775280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 160

約数和(自身を含む): 71424000

約数和(自身を除く): 51648720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 79, 80, 84, 105, 112, 120, 140, 149, 158, 168, 210, 237, 240, 280, 298, 316, 336, 395, 420, 447, 474, 553, 560, 596, 632, 745, 790, 840, 894, 948, 1043, 1106, 1185, 1192, 1264, 1490, 1580, 1659, 1680, 1788, 1896, 2086, 2212, 2235, 2370, 2384, 2765, 2980, 3129, 3160, 3318, 3576, 3792, 4172, 4424, 4470, 4740, 5215, 5530, 5960, 6258, 6320, 6636, 7152, 8295, 8344, 8848, 8940, 9480, 10430, 11060, 11771, 11920, 12516, 13272, 15645, 16590, 16688, 17880, 18960, 20860, 22120, 23542, 25032, 26544, 31290, 33180, 35313, 35760, 41720, 44240, 47084, 50064, 58855, 62580, 66360, 70626, 82397, 83440, 94168, 117710, 125160, 132720, 141252, 164794, 176565, 188336, 235420, 247191, 250320, 282504, 329588, 353130, 411985, 470840, 494382, 565008, 659176, 706260, 823970, 941680, 988764, 1235955, 1318352, 1412520, 1647940, 1977528, 2471910, 2825040, 3295880, 3955056, 4943820, 6591760, 9887640, 19775280]

約数ペア:

[(1, 19775280), (2, 9887640), (3, 6591760), (4, 4943820), (5, 3955056), (6, 3295880), (7, 2825040), (8, 2471910), (10, 1977528), (12, 1647940), (14, 1412520), (15, 1318352), (16, 1235955), (20, 988764), (21, 941680), (24, 823970), (28, 706260), (30, 659176), (35, 565008), (40, 494382), (42, 470840), (48, 411985), (56, 353130), (60, 329588), (70, 282504), (79, 250320), (80, 247191), (84, 235420), (105, 188336), (112, 176565), (120, 164794), (140, 141252), (149, 132720), (158, 125160), (168, 117710), (210, 94168), (237, 83440), (240, 82397), (280, 70626), (298, 66360), (316, 62580), (336, 58855), (395, 50064), (420, 47084), (447, 44240), (474, 41720), (553, 35760), (560, 35313), (596, 33180), (632, 31290), (745, 26544), (790, 25032), (840, 23542), (894, 22120), (948, 20860), (1043, 18960), (1106, 17880), (1185, 16688), (1192, 16590), (1264, 15645), (1490, 13272), (1580, 12516), (1659, 11920), (1680, 11771), (1788, 11060), (1896, 10430), (2086, 9480), (2212, 8940), (2235, 8848), (2370, 8344), (2384, 8295), (2765, 7152), (2980, 6636), (3129, 6320), (3160, 6258), (3318, 5960), (3576, 5530), (3792, 5215), (4172, 4740), (4424, 4470)]