28222740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1723}}^1$

素因数の和:1758

約数の個数: 144

約数和(自身を含む): 105426048

約数和(自身を除く): 77203308

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1723, 1820, 2340, 2730, 3276, 3446, 4095, 5169, 5460, 6892, 8190, 8615, 10338, 12061, 15507, 16380, 17230, 20676, 22399, 24122, 25845, 31014, 34460, 36183, 44798, 48244, 51690, 60305, 62028, 67197, 72366, 77535, 89596, 103380, 108549, 111995, 120610, 134394, 144732, 155070, 156793, 180915, 201591, 217098, 223990, 241220, 268788, 310140, 313586, 335985, 361830, 403182, 434196, 447980, 470379, 542745, 627172, 671970, 723660, 783965, 806364, 940758, 1007955, 1085490, 1343940, 1411137, 1567930, 1881516, 2015910, 2170980, 2351895, 2822274, 3135860, 4031820, 4703790, 5644548, 7055685, 9407580, 14111370, 28222740]

約数ペア:

[(1, 28222740), (2, 14111370), (3, 9407580), (4, 7055685), (5, 5644548), (6, 4703790), (7, 4031820), (9, 3135860), (10, 2822274), (12, 2351895), (13, 2170980), (14, 2015910), (15, 1881516), (18, 1567930), (20, 1411137), (21, 1343940), (26, 1085490), (28, 1007955), (30, 940758), (35, 806364), (36, 783965), (39, 723660), (42, 671970), (45, 627172), (52, 542745), (60, 470379), (63, 447980), (65, 434196), (70, 403182), (78, 361830), (84, 335985), (90, 313586), (91, 310140), (105, 268788), (117, 241220), (126, 223990), (130, 217098), (140, 201591), (156, 180915), (180, 156793), (182, 155070), (195, 144732), (210, 134394), (234, 120610), (252, 111995), (260, 108549), (273, 103380), (315, 89596), (364, 77535), (390, 72366), (420, 67197), (455, 62028), (468, 60305), (546, 51690), (585, 48244), (630, 44798), (780, 36183), (819, 34460), (910, 31014), (1092, 25845), (1170, 24122), (1260, 22399), (1365, 20676), (1638, 17230), (1723, 16380), (1820, 15507), (2340, 12061), (2730, 10338), (3276, 8615), (3446, 8190), (4095, 6892), (5169, 5460)]