78024520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 211507200

約数和(自身を除く): 133482680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 89, 101, 124, 140, 155, 178, 202, 217, 248, 280, 310, 356, 404, 434, 445, 505, 620, 623, 707, 712, 808, 868, 890, 1010, 1085, 1240, 1246, 1414, 1736, 1780, 2020, 2170, 2492, 2759, 2828, 3115, 3131, 3535, 3560, 4040, 4340, 4984, 5518, 5656, 6230, 6262, 7070, 8680, 8989, 11036, 12460, 12524, 13795, 14140, 15655, 17978, 19313, 21917, 22072, 24920, 25048, 27590, 28280, 31310, 35956, 38626, 43834, 44945, 55180, 62620, 62923, 71912, 77252, 87668, 89890, 96565, 109585, 110360, 125240, 125846, 154504, 175336, 179780, 193130, 219170, 251692, 278659, 314615, 359560, 386260, 438340, 503384, 557318, 629230, 772520, 876680, 1114636, 1258460, 1393295, 1950613, 2229272, 2516920, 2786590, 3901226, 5573180, 7802452, 9753065, 11146360, 15604904, 19506130, 39012260, 78024520]

約数ペア:

[(1, 78024520), (2, 39012260), (4, 19506130), (5, 15604904), (7, 11146360), (8, 9753065), (10, 7802452), (14, 5573180), (20, 3901226), (28, 2786590), (31, 2516920), (35, 2229272), (40, 1950613), (56, 1393295), (62, 1258460), (70, 1114636), (89, 876680), (101, 772520), (124, 629230), (140, 557318), (155, 503384), (178, 438340), (202, 386260), (217, 359560), (248, 314615), (280, 278659), (310, 251692), (356, 219170), (404, 193130), (434, 179780), (445, 175336), (505, 154504), (620, 125846), (623, 125240), (707, 110360), (712, 109585), (808, 96565), (868, 89890), (890, 87668), (1010, 77252), (1085, 71912), (1240, 62923), (1246, 62620), (1414, 55180), (1736, 44945), (1780, 43834), (2020, 38626), (2170, 35956), (2492, 31310), (2759, 28280), (2828, 27590), (3115, 25048), (3131, 24920), (3535, 22072), (3560, 21917), (4040, 19313), (4340, 17978), (4984, 15655), (5518, 14140), (5656, 13795), (6230, 12524), (6262, 12460), (7070, 11036), (8680, 8989)]