642679492

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 1535971248

約数和(自身を除く): 893291756

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 37, 49, 52, 68, 74, 91, 98, 119, 148, 182, 196, 221, 238, 259, 364, 401, 442, 476, 481, 518, 629, 637, 802, 833, 884, 962, 1036, 1258, 1274, 1547, 1604, 1666, 1813, 1924, 2516, 2548, 2807, 3094, 3332, 3367, 3626, 4403, 5213, 5614, 6188, 6734, 6817, 7252, 8177, 8806, 10426, 10829, 11228, 13468, 13634, 14837, 16354, 17612, 19649, 20852, 21658, 23569, 27268, 29674, 30821, 32708, 36491, 39298, 43316, 47138, 47719, 57239, 59348, 61642, 72982, 78596, 88621, 94276, 95438, 103859, 114478, 123284, 145964, 177242, 190876, 192881, 207718, 228956, 252229, 255437, 334033, 354484, 385762, 400673, 415436, 504458, 510874, 620347, 668066, 727013, 771524, 801346, 1008916, 1021748, 1240694, 1336132, 1350167, 1454026, 1602692, 1765603, 2481388, 2700334, 2908052, 3278977, 3531206, 4342429, 5400668, 6557954, 7062412, 8684858, 9451169, 12359221, 13115908, 17369716, 18902338, 22952839, 24718442, 37804676, 45905678, 49436884, 91811356, 160669873, 321339746, 642679492]

約数ペア:

[(1, 642679492), (2, 321339746), (4, 160669873), (7, 91811356), (13, 49436884), (14, 45905678), (17, 37804676), (26, 24718442), (28, 22952839), (34, 18902338), (37, 17369716), (49, 13115908), (52, 12359221), (68, 9451169), (74, 8684858), (91, 7062412), (98, 6557954), (119, 5400668), (148, 4342429), (182, 3531206), (196, 3278977), (221, 2908052), (238, 2700334), (259, 2481388), (364, 1765603), (401, 1602692), (442, 1454026), (476, 1350167), (481, 1336132), (518, 1240694), (629, 1021748), (637, 1008916), (802, 801346), (833, 771524), (884, 727013), (962, 668066), (1036, 620347), (1258, 510874), (1274, 504458), (1547, 415436), (1604, 400673), (1666, 385762), (1813, 354484), (1924, 334033), (2516, 255437), (2548, 252229), (2807, 228956), (3094, 207718), (3332, 192881), (3367, 190876), (3626, 177242), (4403, 145964), (5213, 123284), (5614, 114478), (6188, 103859), (6734, 95438), (6817, 94276), (7252, 88621), (8177, 78596), (8806, 72982), (10426, 61642), (10829, 59348), (11228, 57239), (13468, 47719), (13634, 47138), (14837, 43316), (16354, 39298), (17612, 36491), (19649, 32708), (20852, 30821), (21658, 29674), (23569, 27268)]