1218739080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{781243}}^1$

素因数の和:781270

約数の個数: 64

約数和(自身を含む): 3937469760

約数和(自身を除く): 2718730680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 781243, 1562486, 2343729, 3124972, 3906215, 4687458, 6249944, 7812430, 9374916, 10156159, 11718645, 15624860, 18749832, 20312318, 23437290, 30468477, 31249720, 40624636, 46874580, 50780795, 60936954, 81249272, 93749160, 101561590, 121873908, 152342385, 203123180, 243747816, 304684770, 406246360, 609369540, 1218739080]

約数ペア:

[(1, 1218739080), (2, 609369540), (3, 406246360), (4, 304684770), (5, 243747816), (6, 203123180), (8, 152342385), (10, 121873908), (12, 101561590), (13, 93749160), (15, 81249272), (20, 60936954), (24, 50780795), (26, 46874580), (30, 40624636), (39, 31249720), (40, 30468477), (52, 23437290), (60, 20312318), (65, 18749832), (78, 15624860), (104, 11718645), (120, 10156159), (130, 9374916), (156, 7812430), (195, 6249944), (260, 4687458), (312, 3906215), (390, 3124972), (520, 2343729), (780, 1562486), (1560, 781243)]