19581280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:368

約数の個数: 96

約数和(自身を含む): 51274944

約数和(自身を除く): 31693664

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 272, 313, 340, 368, 391, 460, 544, 626, 680, 736, 782, 920, 1252, 1360, 1564, 1565, 1840, 1955, 2504, 2720, 3128, 3130, 3680, 3910, 5008, 5321, 6256, 6260, 7199, 7820, 10016, 10642, 12512, 12520, 14398, 15640, 21284, 25040, 26605, 28796, 31280, 35995, 42568, 50080, 53210, 57592, 62560, 71990, 85136, 106420, 115184, 122383, 143980, 170272, 212840, 230368, 244766, 287960, 425680, 489532, 575920, 611915, 851360, 979064, 1151840, 1223830, 1958128, 2447660, 3916256, 4895320, 9790640, 19581280]

約数ペア:

[(1, 19581280), (2, 9790640), (4, 4895320), (5, 3916256), (8, 2447660), (10, 1958128), (16, 1223830), (17, 1151840), (20, 979064), (23, 851360), (32, 611915), (34, 575920), (40, 489532), (46, 425680), (68, 287960), (80, 244766), (85, 230368), (92, 212840), (115, 170272), (136, 143980), (160, 122383), (170, 115184), (184, 106420), (230, 85136), (272, 71990), (313, 62560), (340, 57592), (368, 53210), (391, 50080), (460, 42568), (544, 35995), (626, 31280), (680, 28796), (736, 26605), (782, 25040), (920, 21284), (1252, 15640), (1360, 14398), (1564, 12520), (1565, 12512), (1840, 10642), (1955, 10016), (2504, 7820), (2720, 7199), (3128, 6260), (3130, 6256), (3680, 5321), (3910, 5008)]