279606470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 128

約数和(自身を含む): 640120320

約数和(自身を除く): 360513850

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 41, 55, 65, 82, 95, 110, 130, 143, 190, 205, 209, 247, 251, 286, 410, 418, 451, 494, 502, 533, 715, 779, 902, 1045, 1066, 1235, 1255, 1430, 1558, 2090, 2255, 2470, 2510, 2665, 2717, 2761, 3263, 3895, 4510, 4769, 5330, 5434, 5522, 5863, 6526, 7790, 8569, 9538, 10127, 10291, 11726, 13585, 13805, 16315, 17138, 20254, 20582, 23845, 27170, 27610, 29315, 32630, 35893, 42845, 47690, 50635, 51455, 52459, 58630, 61997, 71786, 85690, 101270, 102910, 104918, 111397, 113201, 123994, 133783, 179465, 195529, 222794, 226402, 262295, 267566, 309985, 358930, 391058, 524590, 556985, 566005, 619970, 668915, 681967, 977645, 1113970, 1132010, 1337830, 1363934, 1471613, 1955290, 2150819, 2541877, 2943226, 3409835, 4301638, 5083754, 6819670, 7358065, 10754095, 12709385, 14716130, 21508190, 25418770, 27960647, 55921294, 139803235, 279606470]

約数ペア:

[(1, 279606470), (2, 139803235), (5, 55921294), (10, 27960647), (11, 25418770), (13, 21508190), (19, 14716130), (22, 12709385), (26, 10754095), (38, 7358065), (41, 6819670), (55, 5083754), (65, 4301638), (82, 3409835), (95, 2943226), (110, 2541877), (130, 2150819), (143, 1955290), (190, 1471613), (205, 1363934), (209, 1337830), (247, 1132010), (251, 1113970), (286, 977645), (410, 681967), (418, 668915), (451, 619970), (494, 566005), (502, 556985), (533, 524590), (715, 391058), (779, 358930), (902, 309985), (1045, 267566), (1066, 262295), (1235, 226402), (1255, 222794), (1430, 195529), (1558, 179465), (2090, 133783), (2255, 123994), (2470, 113201), (2510, 111397), (2665, 104918), (2717, 102910), (2761, 101270), (3263, 85690), (3895, 71786), (4510, 61997), (4769, 58630), (5330, 52459), (5434, 51455), (5522, 50635), (5863, 47690), (6526, 42845), (7790, 35893), (8569, 32630), (9538, 29315), (10127, 27610), (10291, 27170), (11726, 23845), (13585, 20582), (13805, 20254), (16315, 17138)]