280014020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5153}}^1$

素因数の和:5205

約数の個数: 96

約数和(自身を含む): 727332480

約数和(自身を除く): 447318460

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 130, 143, 190, 209, 220, 247, 260, 286, 380, 418, 494, 572, 715, 836, 988, 1045, 1235, 1430, 2090, 2470, 2717, 2860, 4180, 4940, 5153, 5434, 10306, 10868, 13585, 20612, 25765, 27170, 51530, 54340, 56683, 66989, 97907, 103060, 113366, 133978, 195814, 226732, 267956, 283415, 334945, 391628, 489535, 566830, 669890, 736879, 979070, 1076977, 1133660, 1272791, 1339780, 1473758, 1958140, 2153954, 2545582, 2947516, 3684395, 4307908, 5091164, 5384885, 6363955, 7368790, 10769770, 12727910, 14000701, 14737580, 21539540, 25455820, 28001402, 56002804, 70003505, 140007010, 280014020]

約数ペア:

[(1, 280014020), (2, 140007010), (4, 70003505), (5, 56002804), (10, 28001402), (11, 25455820), (13, 21539540), (19, 14737580), (20, 14000701), (22, 12727910), (26, 10769770), (38, 7368790), (44, 6363955), (52, 5384885), (55, 5091164), (65, 4307908), (76, 3684395), (95, 2947516), (110, 2545582), (130, 2153954), (143, 1958140), (190, 1473758), (209, 1339780), (220, 1272791), (247, 1133660), (260, 1076977), (286, 979070), (380, 736879), (418, 669890), (494, 566830), (572, 489535), (715, 391628), (836, 334945), (988, 283415), (1045, 267956), (1235, 226732), (1430, 195814), (2090, 133978), (2470, 113366), (2717, 103060), (2860, 97907), (4180, 66989), (4940, 56683), (5153, 54340), (5434, 51530), (10306, 27170), (10868, 25765), (13585, 20612)]