278541270

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:499

約数の個数: 192

約数和(自身を含む): 884183040

約数和(自身を除く): 605641770

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 47, 63, 69, 70, 90, 94, 105, 115, 126, 138, 141, 161, 207, 210, 230, 235, 282, 315, 322, 329, 345, 409, 414, 423, 470, 483, 630, 658, 690, 705, 805, 818, 846, 966, 987, 1035, 1081, 1227, 1410, 1449, 1610, 1645, 1974, 2045, 2070, 2115, 2162, 2415, 2454, 2863, 2898, 2961, 3243, 3290, 3681, 4090, 4230, 4830, 4935, 5405, 5726, 5922, 6135, 6486, 7245, 7362, 7567, 8589, 9407, 9729, 9870, 10810, 12270, 14315, 14490, 14805, 15134, 16215, 17178, 18405, 18814, 19223, 19458, 22701, 25767, 28221, 28630, 29610, 32430, 36810, 37835, 38446, 42945, 45402, 47035, 48645, 51534, 56442, 57669, 65849, 68103, 75670, 84663, 85890, 94070, 96115, 97290, 113505, 115338, 128835, 131698, 134561, 136206, 141105, 169326, 173007, 192230, 197547, 227010, 257670, 269122, 282210, 288345, 329245, 340515, 346014, 395094, 403683, 423315, 442129, 576690, 592641, 658490, 672805, 681030, 807366, 846630, 865035, 884258, 987735, 1185282, 1211049, 1326387, 1345610, 1730070, 1975470, 2018415, 2210645, 2422098, 2652774, 2963205, 3094903, 3979161, 4036830, 4421290, 5926410, 6055245, 6189806, 6631935, 7958322, 9284709, 12110490, 13263870, 15474515, 18569418, 19895805, 27854127, 30949030, 39791610, 46423545, 55708254, 92847090, 139270635, 278541270]

約数ペア:

[(1, 278541270), (2, 139270635), (3, 92847090), (5, 55708254), (6, 46423545), (7, 39791610), (9, 30949030), (10, 27854127), (14, 19895805), (15, 18569418), (18, 15474515), (21, 13263870), (23, 12110490), (30, 9284709), (35, 7958322), (42, 6631935), (45, 6189806), (46, 6055245), (47, 5926410), (63, 4421290), (69, 4036830), (70, 3979161), (90, 3094903), (94, 2963205), (105, 2652774), (115, 2422098), (126, 2210645), (138, 2018415), (141, 1975470), (161, 1730070), (207, 1345610), (210, 1326387), (230, 1211049), (235, 1185282), (282, 987735), (315, 884258), (322, 865035), (329, 846630), (345, 807366), (409, 681030), (414, 672805), (423, 658490), (470, 592641), (483, 576690), (630, 442129), (658, 423315), (690, 403683), (705, 395094), (805, 346014), (818, 340515), (846, 329245), (966, 288345), (987, 282210), (1035, 269122), (1081, 257670), (1227, 227010), (1410, 197547), (1449, 192230), (1610, 173007), (1645, 169326), (1974, 141105), (2045, 136206), (2070, 134561), (2115, 131698), (2162, 128835), (2415, 115338), (2454, 113505), (2863, 97290), (2898, 96115), (2961, 94070), (3243, 85890), (3290, 84663), (3681, 75670), (4090, 68103), (4230, 65849), (4830, 57669), (4935, 56442), (5405, 51534), (5726, 48645), (5922, 47035), (6135, 45402), (6486, 42945), (7245, 38446), (7362, 37835), (7567, 36810), (8589, 32430), (9407, 29610), (9729, 28630), (9870, 28221), (10810, 25767), (12270, 22701), (14315, 19458), (14490, 19223), (14805, 18814), (15134, 18405), (16215, 17178)]