620125705

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 858470400

約数和(自身を除く): 238344695

約数列:

[1, 5, 19, 29, 31, 53, 95, 137, 145, 155, 265, 551, 589, 685, 899, 1007, 1537, 1643, 2603, 2755, 2945, 3973, 4247, 4495, 5035, 7261, 7685, 8215, 13015, 17081, 19865, 21235, 29203, 31217, 36305, 47647, 75487, 80693, 85405, 123163, 137959, 146015, 156085, 210569, 225091, 238235, 377435, 403465, 615815, 689795, 905293, 1052845, 1125455, 2340097, 4000811, 4276729, 4526465, 6527639, 11700485, 20004055, 21383645, 32638195, 124025141, 620125705]

約数ペア:

[(1, 620125705), (5, 124025141), (19, 32638195), (29, 21383645), (31, 20004055), (53, 11700485), (95, 6527639), (137, 4526465), (145, 4276729), (155, 4000811), (265, 2340097), (551, 1125455), (589, 1052845), (685, 905293), (899, 689795), (1007, 615815), (1537, 403465), (1643, 377435), (2603, 238235), (2755, 225091), (2945, 210569), (3973, 156085), (4247, 146015), (4495, 137959), (5035, 123163), (7261, 85405), (7685, 80693), (8215, 75487), (13015, 47647), (17081, 36305), (19865, 31217), (21235, 29203)]