291219989420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1\times {\mathrm{4051}}^1$

素因数の和:4575

約数の個数: 96

約数和(自身を含む): 625405777920

約数和(自身を除く): 334185788500

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 173, 263, 316, 346, 395, 526, 692, 790, 865, 1052, 1315, 1580, 1730, 2630, 3460, 4051, 5260, 8102, 13667, 16204, 20255, 20777, 27334, 40510, 41554, 45499, 54668, 68335, 81020, 83108, 90998, 103885, 136670, 181996, 207770, 227495, 273340, 320029, 415540, 454990, 640058, 700823, 909980, 1065413, 1280116, 1401646, 1600145, 2130826, 2803292, 3200290, 3504115, 3594421, 4261652, 5327065, 6400580, 7008230, 7188842, 10654130, 14016460, 14377684, 17972105, 21308260, 35944210, 55365017, 71888420, 84167627, 110730034, 168335254, 184316449, 221460068, 276825085, 336670508, 368632898, 420838135, 553650170, 737265796, 841676270, 921582245, 1107300340, 1683352540, 1843164490, 3686328980, 14560999471, 29121998942, 58243997884, 72804997355, 145609994710, 291219989420]

約数ペア:

[(1, 291219989420), (2, 145609994710), (4, 72804997355), (5, 58243997884), (10, 29121998942), (20, 14560999471), (79, 3686328980), (158, 1843164490), (173, 1683352540), (263, 1107300340), (316, 921582245), (346, 841676270), (395, 737265796), (526, 553650170), (692, 420838135), (790, 368632898), (865, 336670508), (1052, 276825085), (1315, 221460068), (1580, 184316449), (1730, 168335254), (2630, 110730034), (3460, 84167627), (4051, 71888420), (5260, 55365017), (8102, 35944210), (13667, 21308260), (16204, 17972105), (20255, 14377684), (20777, 14016460), (27334, 10654130), (40510, 7188842), (41554, 7008230), (45499, 6400580), (54668, 5327065), (68335, 4261652), (81020, 3594421), (83108, 3504115), (90998, 3200290), (103885, 2803292), (136670, 2130826), (181996, 1600145), (207770, 1401646), (227495, 1280116), (273340, 1065413), (320029, 909980), (415540, 700823), (454990, 640058)]