213537920

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:326

約数の個数: 128

約数和(自身を含む): 540518400

約数和(自身を除く): 326980480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 94, 124, 128, 155, 160, 188, 229, 235, 248, 310, 320, 376, 458, 470, 496, 620, 640, 752, 916, 940, 992, 1145, 1240, 1457, 1504, 1832, 1880, 1984, 2290, 2480, 2914, 3008, 3664, 3760, 3968, 4580, 4960, 5828, 6016, 7099, 7285, 7328, 7520, 9160, 9920, 10763, 11656, 14198, 14570, 14656, 15040, 18320, 19840, 21526, 23312, 28396, 29140, 29312, 30080, 35495, 36640, 43052, 46624, 53815, 56792, 58280, 70990, 73280, 86104, 93248, 107630, 113584, 116560, 141980, 146560, 172208, 186496, 215260, 227168, 233120, 283960, 333653, 344416, 430520, 454336, 466240, 567920, 667306, 688832, 861040, 908672, 932480, 1135840, 1334612, 1377664, 1668265, 1722080, 2271680, 2669224, 3336530, 3444160, 4543360, 5338448, 6673060, 6888320, 10676896, 13346120, 21353792, 26692240, 42707584, 53384480, 106768960, 213537920]

約数ペア:

[(1, 213537920), (2, 106768960), (4, 53384480), (5, 42707584), (8, 26692240), (10, 21353792), (16, 13346120), (20, 10676896), (31, 6888320), (32, 6673060), (40, 5338448), (47, 4543360), (62, 3444160), (64, 3336530), (80, 2669224), (94, 2271680), (124, 1722080), (128, 1668265), (155, 1377664), (160, 1334612), (188, 1135840), (229, 932480), (235, 908672), (248, 861040), (310, 688832), (320, 667306), (376, 567920), (458, 466240), (470, 454336), (496, 430520), (620, 344416), (640, 333653), (752, 283960), (916, 233120), (940, 227168), (992, 215260), (1145, 186496), (1240, 172208), (1457, 146560), (1504, 141980), (1832, 116560), (1880, 113584), (1984, 107630), (2290, 93248), (2480, 86104), (2914, 73280), (3008, 70990), (3664, 58280), (3760, 56792), (3968, 53815), (4580, 46624), (4960, 43052), (5828, 36640), (6016, 35495), (7099, 30080), (7285, 29312), (7328, 29140), (7520, 28396), (9160, 23312), (9920, 21526), (10763, 19840), (11656, 18320), (14198, 15040), (14570, 14656)]