388611940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{24943}}^1$

素因数の和:25012

約数の個数: 48

約数和(自身を含む): 880024320

約数和(自身を除く): 491412380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 24943, 49886, 99772, 124715, 249430, 473917, 498860, 947834, 1022663, 1895668, 2045326, 2369585, 4090652, 4739170, 5113315, 9478340, 10226630, 19430597, 20453260, 38861194, 77722388, 97152985, 194305970, 388611940]

約数ペア:

[(1, 388611940), (2, 194305970), (4, 97152985), (5, 77722388), (10, 38861194), (19, 20453260), (20, 19430597), (38, 10226630), (41, 9478340), (76, 5113315), (82, 4739170), (95, 4090652), (164, 2369585), (190, 2045326), (205, 1895668), (380, 1022663), (410, 947834), (779, 498860), (820, 473917), (1558, 249430), (3116, 124715), (3895, 99772), (7790, 49886), (15580, 24943)]