20269968160

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{12289}}^1$

素因数の和:12391

約数の個数: 144

約数和(自身を含む): 52709204520

約数和(自身を除く): 32439236360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 65, 80, 104, 122, 130, 160, 169, 208, 244, 260, 305, 338, 416, 488, 520, 610, 676, 793, 845, 976, 1040, 1220, 1352, 1586, 1690, 1952, 2080, 2440, 2704, 3172, 3380, 3965, 4880, 5408, 6344, 6760, 7930, 9760, 10309, 12289, 12688, 13520, 15860, 20618, 24578, 25376, 27040, 31720, 41236, 49156, 51545, 61445, 63440, 82472, 98312, 103090, 122890, 126880, 159757, 164944, 196624, 206180, 245780, 319514, 329888, 393248, 412360, 491560, 639028, 749629, 798785, 824720, 983120, 1278056, 1499258, 1597570, 1649440, 1966240, 2076841, 2556112, 2998516, 3195140, 3748145, 4153682, 5112224, 5997032, 6390280, 7496290, 8307364, 9745177, 10384205, 11994064, 12780560, 14992580, 16614728, 19490354, 20768410, 23988128, 25561120, 29985160, 33229456, 38980708, 41536820, 48725885, 59970320, 66458912, 77961416, 83073640, 97451770, 119940640, 126687301, 155922832, 166147280, 194903540, 253374602, 311845664, 332294560, 389807080, 506749204, 633436505, 779614160, 1013498408, 1266873010, 1559228320, 2026996816, 2533746020, 4053993632, 5067492040, 10134984080, 20269968160]

約数ペア:

[(1, 20269968160), (2, 10134984080), (4, 5067492040), (5, 4053993632), (8, 2533746020), (10, 2026996816), (13, 1559228320), (16, 1266873010), (20, 1013498408), (26, 779614160), (32, 633436505), (40, 506749204), (52, 389807080), (61, 332294560), (65, 311845664), (80, 253374602), (104, 194903540), (122, 166147280), (130, 155922832), (160, 126687301), (169, 119940640), (208, 97451770), (244, 83073640), (260, 77961416), (305, 66458912), (338, 59970320), (416, 48725885), (488, 41536820), (520, 38980708), (610, 33229456), (676, 29985160), (793, 25561120), (845, 23988128), (976, 20768410), (1040, 19490354), (1220, 16614728), (1352, 14992580), (1586, 12780560), (1690, 11994064), (1952, 10384205), (2080, 9745177), (2440, 8307364), (2704, 7496290), (3172, 6390280), (3380, 5997032), (3965, 5112224), (4880, 4153682), (5408, 3748145), (6344, 3195140), (6760, 2998516), (7930, 2556112), (9760, 2076841), (10309, 1966240), (12289, 1649440), (12688, 1597570), (13520, 1499258), (15860, 1278056), (20618, 983120), (24578, 824720), (25376, 798785), (27040, 749629), (31720, 639028), (41236, 491560), (49156, 412360), (51545, 393248), (61445, 329888), (63440, 319514), (82472, 245780), (98312, 206180), (103090, 196624), (122890, 164944), (126880, 159757)]