639266940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1063}}^1$

素因数の和:1348

約数の個数: 144

約数和(自身を含む): 2098369728

約数和(自身を除く): 1459102788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 257, 260, 390, 468, 514, 585, 771, 780, 1028, 1063, 1170, 1285, 1542, 2126, 2313, 2340, 2570, 3084, 3189, 3341, 3855, 4252, 4626, 5140, 5315, 6378, 6682, 7710, 9252, 9567, 10023, 10630, 11565, 12756, 13364, 13819, 15420, 15945, 16705, 19134, 20046, 21260, 23130, 27638, 30069, 31890, 33410, 38268, 40092, 41457, 46260, 47835, 50115, 55276, 60138, 63780, 66820, 69095, 82914, 95670, 100230, 120276, 124371, 138190, 150345, 165828, 191340, 200460, 207285, 248742, 273191, 276380, 300690, 414570, 497484, 546382, 601380, 621855, 819573, 829140, 1092764, 1243710, 1365955, 1639146, 2458719, 2487420, 2731910, 3278292, 3551483, 4097865, 4917438, 5463820, 7102966, 8195730, 9834876, 10654449, 12293595, 14205932, 16391460, 17757415, 21308898, 24587190, 31963347, 35514830, 42617796, 49174380, 53272245, 63926694, 71029660, 106544490, 127853388, 159816735, 213088980, 319633470, 639266940]

約数ペア:

[(1, 639266940), (2, 319633470), (3, 213088980), (4, 159816735), (5, 127853388), (6, 106544490), (9, 71029660), (10, 63926694), (12, 53272245), (13, 49174380), (15, 42617796), (18, 35514830), (20, 31963347), (26, 24587190), (30, 21308898), (36, 17757415), (39, 16391460), (45, 14205932), (52, 12293595), (60, 10654449), (65, 9834876), (78, 8195730), (90, 7102966), (117, 5463820), (130, 4917438), (156, 4097865), (180, 3551483), (195, 3278292), (234, 2731910), (257, 2487420), (260, 2458719), (390, 1639146), (468, 1365955), (514, 1243710), (585, 1092764), (771, 829140), (780, 819573), (1028, 621855), (1063, 601380), (1170, 546382), (1285, 497484), (1542, 414570), (2126, 300690), (2313, 276380), (2340, 273191), (2570, 248742), (3084, 207285), (3189, 200460), (3341, 191340), (3855, 165828), (4252, 150345), (4626, 138190), (5140, 124371), (5315, 120276), (6378, 100230), (6682, 95670), (7710, 82914), (9252, 69095), (9567, 66820), (10023, 63780), (10630, 60138), (11565, 55276), (12756, 50115), (13364, 47835), (13819, 46260), (15420, 41457), (15945, 40092), (16705, 38268), (19134, 33410), (20046, 31890), (21260, 30069), (23130, 27638)]