20640612944

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2377}}^1$

素因数の和:2525

約数の個数: 160

約数和(自身を含む): 49142188032

約数和(自身を除く): 28501575088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 41, 56, 61, 62, 82, 112, 122, 124, 164, 217, 244, 248, 287, 328, 427, 434, 488, 496, 574, 656, 854, 868, 976, 1148, 1271, 1708, 1736, 1891, 2296, 2377, 2501, 2542, 3416, 3472, 3782, 4592, 4754, 5002, 5084, 6832, 7564, 8897, 9508, 10004, 10168, 13237, 15128, 16639, 17507, 17794, 19016, 20008, 20336, 26474, 30256, 33278, 35014, 35588, 38032, 40016, 52948, 66556, 70028, 71176, 73687, 77531, 97457, 105896, 133112, 140056, 142352, 144997, 147374, 155062, 194914, 211792, 266224, 280112, 289994, 294748, 310124, 389828, 515809, 542717, 579988, 589496, 620248, 682199, 779656, 1014979, 1031618, 1085434, 1159976, 1178992, 1240496, 1364398, 1559312, 2029958, 2063236, 2170868, 2319952, 2728796, 3021167, 4059916, 4126472, 4341736, 4494907, 5457592, 5944877, 6042334, 8119832, 8252944, 8683472, 8989814, 10915184, 11889754, 12084668, 16239664, 17979628, 21148169, 23779508, 24169336, 31464349, 35959256, 41614139, 42296338, 47559016, 48338672, 62928698, 71918512, 83228278, 84592676, 95118032, 125857396, 166456556, 169185352, 184291187, 251714792, 332913112, 338370704, 368582374, 503429584, 665826224, 737164748, 1290038309, 1474329496, 2580076618, 2948658992, 5160153236, 10320306472, 20640612944]

約数ペア:

[(1, 20640612944), (2, 10320306472), (4, 5160153236), (7, 2948658992), (8, 2580076618), (14, 1474329496), (16, 1290038309), (28, 737164748), (31, 665826224), (41, 503429584), (56, 368582374), (61, 338370704), (62, 332913112), (82, 251714792), (112, 184291187), (122, 169185352), (124, 166456556), (164, 125857396), (217, 95118032), (244, 84592676), (248, 83228278), (287, 71918512), (328, 62928698), (427, 48338672), (434, 47559016), (488, 42296338), (496, 41614139), (574, 35959256), (656, 31464349), (854, 24169336), (868, 23779508), (976, 21148169), (1148, 17979628), (1271, 16239664), (1708, 12084668), (1736, 11889754), (1891, 10915184), (2296, 8989814), (2377, 8683472), (2501, 8252944), (2542, 8119832), (3416, 6042334), (3472, 5944877), (3782, 5457592), (4592, 4494907), (4754, 4341736), (5002, 4126472), (5084, 4059916), (6832, 3021167), (7564, 2728796), (8897, 2319952), (9508, 2170868), (10004, 2063236), (10168, 2029958), (13237, 1559312), (15128, 1364398), (16639, 1240496), (17507, 1178992), (17794, 1159976), (19016, 1085434), (20008, 1031618), (20336, 1014979), (26474, 779656), (30256, 682199), (33278, 620248), (35014, 589496), (35588, 579988), (38032, 542717), (40016, 515809), (52948, 389828), (66556, 310124), (70028, 294748), (71176, 289994), (73687, 280112), (77531, 266224), (97457, 211792), (105896, 194914), (133112, 155062), (140056, 147374), (142352, 144997)]