144705820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1163

約数の個数: 72

約数和(自身を含む): 356227200

約数和(自身を除く): 211521380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 490, 596, 745, 980, 991, 1043, 1490, 1982, 2086, 2980, 3964, 4172, 4955, 5215, 6937, 7301, 9910, 10430, 13874, 14602, 19820, 20860, 27748, 29204, 34685, 36505, 48559, 69370, 73010, 97118, 138740, 146020, 147659, 194236, 242795, 295318, 485590, 590636, 738295, 971180, 1033613, 1476590, 2067226, 2953180, 4134452, 5168065, 7235291, 10336130, 14470582, 20672260, 28941164, 36176455, 72352910, 144705820]

約数ペア:

[(1, 144705820), (2, 72352910), (4, 36176455), (5, 28941164), (7, 20672260), (10, 14470582), (14, 10336130), (20, 7235291), (28, 5168065), (35, 4134452), (49, 2953180), (70, 2067226), (98, 1476590), (140, 1033613), (149, 971180), (196, 738295), (245, 590636), (298, 485590), (490, 295318), (596, 242795), (745, 194236), (980, 147659), (991, 146020), (1043, 138740), (1490, 97118), (1982, 73010), (2086, 69370), (2980, 48559), (3964, 36505), (4172, 34685), (4955, 29204), (5215, 27748), (6937, 20860), (7301, 19820), (9910, 14602), (10430, 13874)]