201490120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1055

約数の個数: 128

約数和(自身を含む): 539965440

約数和(自身を除く): 338475320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 23, 26, 34, 40, 46, 52, 65, 68, 85, 92, 104, 115, 130, 136, 170, 184, 221, 230, 260, 299, 340, 391, 442, 460, 520, 598, 680, 782, 884, 920, 991, 1105, 1196, 1495, 1564, 1768, 1955, 1982, 2210, 2392, 2990, 3128, 3910, 3964, 4420, 4955, 5083, 5980, 7820, 7928, 8840, 9910, 10166, 11960, 12883, 15640, 16847, 19820, 20332, 22793, 25415, 25766, 33694, 39640, 40664, 45586, 50830, 51532, 64415, 67388, 84235, 91172, 101660, 103064, 113965, 128830, 134776, 168470, 182344, 203320, 219011, 227930, 257660, 296309, 336940, 387481, 438022, 455860, 515320, 592618, 673880, 774962, 876044, 911720, 1095055, 1185236, 1481545, 1549924, 1752088, 1937405, 2190110, 2370472, 2963090, 3099848, 3874810, 4380220, 5037253, 5926180, 7749620, 8760440, 10074506, 11852360, 15499240, 20149012, 25186265, 40298024, 50372530, 100745060, 201490120]

約数ペア:

[(1, 201490120), (2, 100745060), (4, 50372530), (5, 40298024), (8, 25186265), (10, 20149012), (13, 15499240), (17, 11852360), (20, 10074506), (23, 8760440), (26, 7749620), (34, 5926180), (40, 5037253), (46, 4380220), (52, 3874810), (65, 3099848), (68, 2963090), (85, 2370472), (92, 2190110), (104, 1937405), (115, 1752088), (130, 1549924), (136, 1481545), (170, 1185236), (184, 1095055), (221, 911720), (230, 876044), (260, 774962), (299, 673880), (340, 592618), (391, 515320), (442, 455860), (460, 438022), (520, 387481), (598, 336940), (680, 296309), (782, 257660), (884, 227930), (920, 219011), (991, 203320), (1105, 182344), (1196, 168470), (1495, 134776), (1564, 128830), (1768, 113965), (1955, 103064), (1982, 101660), (2210, 91172), (2392, 84235), (2990, 67388), (3128, 64415), (3910, 51532), (3964, 50830), (4420, 45586), (4955, 40664), (5083, 39640), (5980, 33694), (7820, 25766), (7928, 25415), (8840, 22793), (9910, 20332), (10166, 19820), (11960, 16847), (12883, 15640)]