161431760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:229

約数の個数: 160

約数和(自身を含む): 449971200

約数和(自身を除く): 288539440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 79, 80, 82, 89, 112, 140, 158, 164, 178, 205, 280, 287, 316, 328, 356, 395, 410, 445, 553, 560, 574, 623, 632, 656, 712, 790, 820, 890, 1106, 1148, 1246, 1264, 1424, 1435, 1580, 1640, 1780, 2212, 2296, 2492, 2765, 2870, 3115, 3160, 3239, 3280, 3560, 3649, 4424, 4592, 4984, 5530, 5740, 6230, 6320, 6478, 7031, 7120, 7298, 8848, 9968, 11060, 11480, 12460, 12956, 14062, 14596, 16195, 18245, 22120, 22673, 22960, 24920, 25543, 25912, 28124, 29192, 32390, 35155, 36490, 44240, 45346, 49217, 49840, 51086, 51824, 56248, 58384, 64780, 70310, 72980, 90692, 98434, 102172, 112496, 113365, 127715, 129560, 140620, 145960, 181384, 196868, 204344, 226730, 246085, 255430, 259120, 281240, 288271, 291920, 362768, 393736, 408688, 453460, 492170, 510860, 562480, 576542, 787472, 906920, 984340, 1021720, 1153084, 1441355, 1813840, 1968680, 2017897, 2043440, 2306168, 2882710, 3937360, 4035794, 4612336, 5765420, 8071588, 10089485, 11530840, 16143176, 20178970, 23061680, 32286352, 40357940, 80715880, 161431760]

約数ペア:

[(1, 161431760), (2, 80715880), (4, 40357940), (5, 32286352), (7, 23061680), (8, 20178970), (10, 16143176), (14, 11530840), (16, 10089485), (20, 8071588), (28, 5765420), (35, 4612336), (40, 4035794), (41, 3937360), (56, 2882710), (70, 2306168), (79, 2043440), (80, 2017897), (82, 1968680), (89, 1813840), (112, 1441355), (140, 1153084), (158, 1021720), (164, 984340), (178, 906920), (205, 787472), (280, 576542), (287, 562480), (316, 510860), (328, 492170), (356, 453460), (395, 408688), (410, 393736), (445, 362768), (553, 291920), (560, 288271), (574, 281240), (623, 259120), (632, 255430), (656, 246085), (712, 226730), (790, 204344), (820, 196868), (890, 181384), (1106, 145960), (1148, 140620), (1246, 129560), (1264, 127715), (1424, 113365), (1435, 112496), (1580, 102172), (1640, 98434), (1780, 90692), (2212, 72980), (2296, 70310), (2492, 64780), (2765, 58384), (2870, 56248), (3115, 51824), (3160, 51086), (3239, 49840), (3280, 49217), (3560, 45346), (3649, 44240), (4424, 36490), (4592, 35155), (4984, 32390), (5530, 29192), (5740, 28124), (6230, 25912), (6320, 25543), (6478, 24920), (7031, 22960), (7120, 22673), (7298, 22120), (8848, 18245), (9968, 16195), (11060, 14596), (11480, 14062), (12460, 12956)]