408696340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:509

約数の個数: 96

約数和(自身を含む): 955001376

約数和(自身を除く): 546305036

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 73, 122, 130, 146, 244, 260, 292, 305, 353, 365, 610, 706, 730, 793, 949, 1220, 1412, 1460, 1586, 1765, 1898, 3172, 3530, 3796, 3965, 4453, 4589, 4745, 7060, 7930, 8906, 9178, 9490, 15860, 17812, 18356, 18980, 21533, 22265, 22945, 25769, 43066, 44530, 45890, 51538, 57889, 86132, 89060, 91780, 103076, 107665, 115778, 128845, 215330, 231556, 257690, 279929, 289445, 334997, 430660, 515380, 559858, 578890, 669994, 1119716, 1157780, 1339988, 1399645, 1571909, 1674985, 2799290, 3143818, 3349970, 5598580, 6287636, 6699940, 7859545, 15719090, 20434817, 31438180, 40869634, 81739268, 102174085, 204348170, 408696340]

約数ペア:

[(1, 408696340), (2, 204348170), (4, 102174085), (5, 81739268), (10, 40869634), (13, 31438180), (20, 20434817), (26, 15719090), (52, 7859545), (61, 6699940), (65, 6287636), (73, 5598580), (122, 3349970), (130, 3143818), (146, 2799290), (244, 1674985), (260, 1571909), (292, 1399645), (305, 1339988), (353, 1157780), (365, 1119716), (610, 669994), (706, 578890), (730, 559858), (793, 515380), (949, 430660), (1220, 334997), (1412, 289445), (1460, 279929), (1586, 257690), (1765, 231556), (1898, 215330), (3172, 128845), (3530, 115778), (3796, 107665), (3965, 103076), (4453, 91780), (4589, 89060), (4745, 86132), (7060, 57889), (7930, 51538), (8906, 45890), (9178, 44530), (9490, 43066), (15860, 25769), (17812, 22945), (18356, 22265), (18980, 21533)]