289491720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4721}}^1$

素因数の和:4815

約数の個数: 128

約数和(自身を含む): 1006352640

約数和(自身を除く): 716860920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 73, 84, 105, 120, 140, 146, 168, 210, 219, 280, 292, 365, 420, 438, 511, 584, 730, 840, 876, 1022, 1095, 1460, 1533, 1752, 2044, 2190, 2555, 2920, 3066, 4088, 4380, 4721, 5110, 6132, 7665, 8760, 9442, 10220, 12264, 14163, 15330, 18884, 20440, 23605, 28326, 30660, 33047, 37768, 47210, 56652, 61320, 66094, 70815, 94420, 99141, 113304, 132188, 141630, 165235, 188840, 198282, 264376, 283260, 330470, 344633, 396564, 495705, 566520, 660940, 689266, 793128, 991410, 1033899, 1321880, 1378532, 1723165, 1982820, 2067798, 2412431, 2757064, 3446330, 3965640, 4135596, 4824862, 5169495, 6892660, 7237293, 8271192, 9649724, 10338990, 12062155, 13785320, 14474586, 19299448, 20677980, 24124310, 28949172, 36186465, 41355960, 48248620, 57898344, 72372930, 96497240, 144745860, 289491720]

約数ペア:

[(1, 289491720), (2, 144745860), (3, 96497240), (4, 72372930), (5, 57898344), (6, 48248620), (7, 41355960), (8, 36186465), (10, 28949172), (12, 24124310), (14, 20677980), (15, 19299448), (20, 14474586), (21, 13785320), (24, 12062155), (28, 10338990), (30, 9649724), (35, 8271192), (40, 7237293), (42, 6892660), (56, 5169495), (60, 4824862), (70, 4135596), (73, 3965640), (84, 3446330), (105, 2757064), (120, 2412431), (140, 2067798), (146, 1982820), (168, 1723165), (210, 1378532), (219, 1321880), (280, 1033899), (292, 991410), (365, 793128), (420, 689266), (438, 660940), (511, 566520), (584, 495705), (730, 396564), (840, 344633), (876, 330470), (1022, 283260), (1095, 264376), (1460, 198282), (1533, 188840), (1752, 165235), (2044, 141630), (2190, 132188), (2555, 113304), (2920, 99141), (3066, 94420), (4088, 70815), (4380, 66094), (4721, 61320), (5110, 56652), (6132, 47210), (7665, 37768), (8760, 33047), (9442, 30660), (10220, 28326), (12264, 23605), (14163, 20440), (15330, 18884)]