385219900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5591}}^1$

素因数の和:5671

約数の個数: 72

約数和(自身を含む): 917378784

約数和(自身を除く): 532158884

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 325, 530, 650, 689, 1060, 1300, 1325, 1378, 2650, 2756, 3445, 5300, 5591, 6890, 11182, 13780, 17225, 22364, 27955, 34450, 55910, 68900, 72683, 111820, 139775, 145366, 279550, 290732, 296323, 363415, 559100, 592646, 726830, 1185292, 1453660, 1481615, 1817075, 2963230, 3634150, 3852199, 5926460, 7268300, 7408075, 7704398, 14816150, 15408796, 19260995, 29632300, 38521990, 77043980, 96304975, 192609950, 385219900]

約数ペア:

[(1, 385219900), (2, 192609950), (4, 96304975), (5, 77043980), (10, 38521990), (13, 29632300), (20, 19260995), (25, 15408796), (26, 14816150), (50, 7704398), (52, 7408075), (53, 7268300), (65, 5926460), (100, 3852199), (106, 3634150), (130, 2963230), (212, 1817075), (260, 1481615), (265, 1453660), (325, 1185292), (530, 726830), (650, 592646), (689, 559100), (1060, 363415), (1300, 296323), (1325, 290732), (1378, 279550), (2650, 145366), (2756, 139775), (3445, 111820), (5300, 72683), (5591, 68900), (6890, 55910), (11182, 34450), (13780, 27955), (17225, 22364)]