164495920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3491}}^1$

素因数の和:3554

約数の個数: 80

約数和(自身を含む): 415687680

約数和(自身を除く): 251191760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 3491, 4712, 5890, 6982, 9424, 11780, 13964, 17455, 23560, 27928, 34910, 47120, 55856, 66329, 69820, 108221, 132658, 139640, 216442, 265316, 279280, 331645, 432884, 530632, 541105, 663290, 865768, 1061264, 1082210, 1326580, 1731536, 2056199, 2164420, 2653160, 4112398, 4328840, 5306320, 8224796, 8657680, 10280995, 16449592, 20561990, 32899184, 41123980, 82247960, 164495920]

約数ペア:

[(1, 164495920), (2, 82247960), (4, 41123980), (5, 32899184), (8, 20561990), (10, 16449592), (16, 10280995), (19, 8657680), (20, 8224796), (31, 5306320), (38, 4328840), (40, 4112398), (62, 2653160), (76, 2164420), (80, 2056199), (95, 1731536), (124, 1326580), (152, 1082210), (155, 1061264), (190, 865768), (248, 663290), (304, 541105), (310, 530632), (380, 432884), (496, 331645), (589, 279280), (620, 265316), (760, 216442), (1178, 139640), (1240, 132658), (1520, 108221), (2356, 69820), (2480, 66329), (2945, 55856), (3491, 47120), (4712, 34910), (5890, 27928), (6982, 23560), (9424, 17455), (11780, 13964)]