388981640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{3457}}^1$

素因数の和:3594

約数の個数: 64

約数和(自身を含む): 914986800

約数和(自身を除く): 526005160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 97, 116, 145, 194, 232, 290, 388, 485, 580, 776, 970, 1160, 1940, 2813, 3457, 3880, 5626, 6914, 11252, 13828, 14065, 17285, 22504, 27656, 28130, 34570, 56260, 69140, 100253, 112520, 138280, 200506, 335329, 401012, 501265, 670658, 802024, 1002530, 1341316, 1676645, 2005060, 2682632, 3353290, 4010120, 6706580, 9724541, 13413160, 19449082, 38898164, 48622705, 77796328, 97245410, 194490820, 388981640]

約数ペア:

[(1, 388981640), (2, 194490820), (4, 97245410), (5, 77796328), (8, 48622705), (10, 38898164), (20, 19449082), (29, 13413160), (40, 9724541), (58, 6706580), (97, 4010120), (116, 3353290), (145, 2682632), (194, 2005060), (232, 1676645), (290, 1341316), (388, 1002530), (485, 802024), (580, 670658), (776, 501265), (970, 401012), (1160, 335329), (1940, 200506), (2813, 138280), (3457, 112520), (3880, 100253), (5626, 69140), (6914, 56260), (11252, 34570), (13828, 28130), (14065, 27656), (17285, 22504)]