490394450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:301

約数の個数: 144

約数和(自身を含む): 1162191240

約数和(自身を除く): 671796790

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 49, 50, 65, 70, 89, 91, 98, 130, 173, 175, 178, 182, 245, 325, 346, 350, 445, 455, 490, 623, 637, 650, 865, 890, 910, 1157, 1211, 1225, 1246, 1274, 1730, 2225, 2249, 2275, 2314, 2422, 2450, 3115, 3185, 4325, 4361, 4450, 4498, 4550, 5785, 6055, 6230, 6370, 8099, 8477, 8650, 8722, 11245, 11570, 12110, 15397, 15575, 15743, 15925, 16198, 16954, 21805, 22490, 28925, 30275, 30794, 31150, 31486, 31850, 40495, 42385, 43610, 56225, 56693, 57850, 60550, 76985, 78715, 80990, 84770, 107779, 109025, 110201, 112450, 113386, 153970, 157430, 200161, 202475, 211925, 215558, 218050, 220402, 283465, 384925, 393575, 400322, 404950, 423850, 538895, 551005, 566930, 754453, 769850, 787150, 1000805, 1077790, 1102010, 1401127, 1417325, 1508906, 2001610, 2694475, 2755025, 2802254, 2834650, 3772265, 5004025, 5388950, 5510050, 7005635, 7544530, 9807889, 10008050, 14011270, 18861325, 19615778, 35028175, 37722650, 49039445, 70056350, 98078890, 245197225, 490394450]

約数ペア:

[(1, 490394450), (2, 245197225), (5, 98078890), (7, 70056350), (10, 49039445), (13, 37722650), (14, 35028175), (25, 19615778), (26, 18861325), (35, 14011270), (49, 10008050), (50, 9807889), (65, 7544530), (70, 7005635), (89, 5510050), (91, 5388950), (98, 5004025), (130, 3772265), (173, 2834650), (175, 2802254), (178, 2755025), (182, 2694475), (245, 2001610), (325, 1508906), (346, 1417325), (350, 1401127), (445, 1102010), (455, 1077790), (490, 1000805), (623, 787150), (637, 769850), (650, 754453), (865, 566930), (890, 551005), (910, 538895), (1157, 423850), (1211, 404950), (1225, 400322), (1246, 393575), (1274, 384925), (1730, 283465), (2225, 220402), (2249, 218050), (2275, 215558), (2314, 211925), (2422, 202475), (2450, 200161), (3115, 157430), (3185, 153970), (4325, 113386), (4361, 112450), (4450, 110201), (4498, 109025), (4550, 107779), (5785, 84770), (6055, 80990), (6230, 78715), (6370, 76985), (8099, 60550), (8477, 57850), (8650, 56693), (8722, 56225), (11245, 43610), (11570, 42385), (12110, 40495), (15397, 31850), (15575, 31486), (15743, 31150), (15925, 30794), (16198, 30275), (16954, 28925), (21805, 22490)]