305656420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{11329}}^1$

素因数の和:11428

約数の個数: 48

約数和(自身を含む): 685238400

約数和(自身を除く): 379581980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 5396, 6745, 11329, 13490, 22658, 26980, 45316, 56645, 113290, 215251, 226580, 430502, 804359, 861004, 1076255, 1608718, 2152510, 3217436, 4021795, 4305020, 8043590, 15282821, 16087180, 30565642, 61131284, 76414105, 152828210, 305656420]

約数ペア:

[(1, 305656420), (2, 152828210), (4, 76414105), (5, 61131284), (10, 30565642), (19, 16087180), (20, 15282821), (38, 8043590), (71, 4305020), (76, 4021795), (95, 3217436), (142, 2152510), (190, 1608718), (284, 1076255), (355, 861004), (380, 804359), (710, 430502), (1349, 226580), (1420, 215251), (2698, 113290), (5396, 56645), (6745, 45316), (11329, 26980), (13490, 22658)]