78383500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 190794240

約数和(自身を除く): 112410740

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 125, 130, 155, 250, 260, 310, 325, 389, 403, 500, 620, 650, 775, 778, 806, 1300, 1550, 1556, 1612, 1625, 1945, 2015, 3100, 3250, 3875, 3890, 4030, 5057, 6500, 7750, 7780, 8060, 9725, 10075, 10114, 12059, 15500, 19450, 20150, 20228, 24118, 25285, 38900, 40300, 48236, 48625, 50375, 50570, 60295, 97250, 100750, 101140, 120590, 126425, 156767, 194500, 201500, 241180, 252850, 301475, 313534, 505700, 602950, 627068, 632125, 783835, 1205900, 1264250, 1507375, 1567670, 2528500, 3014750, 3135340, 3919175, 6029500, 7838350, 15676700, 19595875, 39191750, 78383500]

約数ペア:

[(1, 78383500), (2, 39191750), (4, 19595875), (5, 15676700), (10, 7838350), (13, 6029500), (20, 3919175), (25, 3135340), (26, 3014750), (31, 2528500), (50, 1567670), (52, 1507375), (62, 1264250), (65, 1205900), (100, 783835), (124, 632125), (125, 627068), (130, 602950), (155, 505700), (250, 313534), (260, 301475), (310, 252850), (325, 241180), (389, 201500), (403, 194500), (500, 156767), (620, 126425), (650, 120590), (775, 101140), (778, 100750), (806, 97250), (1300, 60295), (1550, 50570), (1556, 50375), (1612, 48625), (1625, 48236), (1945, 40300), (2015, 38900), (3100, 25285), (3250, 24118), (3875, 20228), (3890, 20150), (4030, 19450), (5057, 15500), (6500, 12059), (7750, 10114), (7780, 10075), (8060, 9725)]