1898841760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{20149}}^1$

素因数の和:20214

約数の個数: 96

約数和(自身を含む): 4874688000

約数和(自身を除く): 2975846240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 124, 152, 155, 160, 190, 248, 304, 310, 380, 496, 589, 608, 620, 760, 992, 1178, 1240, 1520, 2356, 2480, 2945, 3040, 4712, 4960, 5890, 9424, 11780, 18848, 20149, 23560, 40298, 47120, 80596, 94240, 100745, 161192, 201490, 322384, 382831, 402980, 624619, 644768, 765662, 805960, 1249238, 1531324, 1611920, 1914155, 2498476, 3062648, 3123095, 3223840, 3828310, 4996952, 6125296, 6246190, 7656620, 9993904, 11867761, 12250592, 12492380, 15313240, 19987808, 23735522, 24984760, 30626480, 47471044, 49969520, 59338805, 61252960, 94942088, 99939040, 118677610, 189884176, 237355220, 379768352, 474710440, 949420880, 1898841760]

約数ペア:

[(1, 1898841760), (2, 949420880), (4, 474710440), (5, 379768352), (8, 237355220), (10, 189884176), (16, 118677610), (19, 99939040), (20, 94942088), (31, 61252960), (32, 59338805), (38, 49969520), (40, 47471044), (62, 30626480), (76, 24984760), (80, 23735522), (95, 19987808), (124, 15313240), (152, 12492380), (155, 12250592), (160, 11867761), (190, 9993904), (248, 7656620), (304, 6246190), (310, 6125296), (380, 4996952), (496, 3828310), (589, 3223840), (608, 3123095), (620, 3062648), (760, 2498476), (992, 1914155), (1178, 1611920), (1240, 1531324), (1520, 1249238), (2356, 805960), (2480, 765662), (2945, 644768), (3040, 624619), (4712, 402980), (4960, 382831), (5890, 322384), (9424, 201490), (11780, 161192), (18848, 100745), (20149, 94240), (23560, 80596), (40298, 47120)]