19990322456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1\times {\mathrm{8969}}^1$

素因数の和:9756

約数の個数: 64

約数和(自身を含む): 41818140000

約数和(自身を除く): 21827817544

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 739, 754, 1478, 1508, 2956, 3016, 5912, 8969, 9607, 17938, 19214, 21431, 35876, 38428, 42862, 71752, 76856, 85724, 116597, 171448, 233194, 260101, 278603, 466388, 520202, 557206, 932776, 1040404, 1114412, 2080808, 2228824, 3381313, 6628091, 6762626, 13256182, 13525252, 26512364, 27050504, 53024728, 86165183, 172330366, 192214639, 344660732, 384429278, 689321464, 768858556, 1537717112, 2498790307, 4997580614, 9995161228, 19990322456]

約数ペア:

[(1, 19990322456), (2, 9995161228), (4, 4997580614), (8, 2498790307), (13, 1537717112), (26, 768858556), (29, 689321464), (52, 384429278), (58, 344660732), (104, 192214639), (116, 172330366), (232, 86165183), (377, 53024728), (739, 27050504), (754, 26512364), (1478, 13525252), (1508, 13256182), (2956, 6762626), (3016, 6628091), (5912, 3381313), (8969, 2228824), (9607, 2080808), (17938, 1114412), (19214, 1040404), (21431, 932776), (35876, 557206), (38428, 520202), (42862, 466388), (71752, 278603), (76856, 260101), (85724, 233194), (116597, 171448)]