218647890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:433

約数の個数: 128

約数和(自身を含む): 615237120

約数和(自身を除く): 396589230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 137, 138, 207, 230, 257, 270, 274, 345, 411, 414, 514, 621, 685, 690, 771, 822, 1035, 1233, 1242, 1285, 1370, 1542, 2055, 2070, 2313, 2466, 2570, 3105, 3151, 3699, 3855, 4110, 4626, 5911, 6165, 6210, 6302, 6939, 7398, 7710, 9453, 11565, 11822, 12330, 13878, 15755, 17733, 18495, 18906, 23130, 28359, 29555, 31510, 34695, 35209, 35466, 36990, 47265, 53199, 56718, 59110, 69390, 70418, 85077, 88665, 94530, 105627, 106398, 141795, 159597, 170154, 176045, 177330, 211254, 265995, 283590, 316881, 319194, 352090, 425385, 528135, 531990, 633762, 797985, 809807, 850770, 950643, 1056270, 1584405, 1595970, 1619614, 1901286, 2429421, 3168810, 4049035, 4753215, 4858842, 7288263, 8098070, 9506430, 12147105, 14576526, 21864789, 24294210, 36441315, 43729578, 72882630, 109323945, 218647890]

約数ペア:

[(1, 218647890), (2, 109323945), (3, 72882630), (5, 43729578), (6, 36441315), (9, 24294210), (10, 21864789), (15, 14576526), (18, 12147105), (23, 9506430), (27, 8098070), (30, 7288263), (45, 4858842), (46, 4753215), (54, 4049035), (69, 3168810), (90, 2429421), (115, 1901286), (135, 1619614), (137, 1595970), (138, 1584405), (207, 1056270), (230, 950643), (257, 850770), (270, 809807), (274, 797985), (345, 633762), (411, 531990), (414, 528135), (514, 425385), (621, 352090), (685, 319194), (690, 316881), (771, 283590), (822, 265995), (1035, 211254), (1233, 177330), (1242, 176045), (1285, 170154), (1370, 159597), (1542, 141795), (2055, 106398), (2070, 105627), (2313, 94530), (2466, 88665), (2570, 85077), (3105, 70418), (3151, 69390), (3699, 59110), (3855, 56718), (4110, 53199), (4626, 47265), (5911, 36990), (6165, 35466), (6210, 35209), (6302, 34695), (6939, 31510), (7398, 29555), (7710, 28359), (9453, 23130), (11565, 18906), (11822, 18495), (12330, 17733), (13878, 15755)]