40438620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{829}}^1$

素因数の和:1115

約数の個数: 72

約数和(自身を含む): 123264960

約数和(自身を除く): 82826340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 542, 813, 829, 1084, 1355, 1626, 1658, 2439, 2487, 2710, 3252, 3316, 4065, 4145, 4878, 4974, 5420, 7461, 8130, 8290, 9756, 9948, 12195, 12435, 14922, 16260, 16580, 24390, 24870, 29844, 37305, 48780, 49740, 74610, 149220, 224659, 449318, 673977, 898636, 1123295, 1347954, 2021931, 2246590, 2695908, 3369885, 4043862, 4493180, 6739770, 8087724, 10109655, 13479540, 20219310, 40438620]

約数ペア:

[(1, 40438620), (2, 20219310), (3, 13479540), (4, 10109655), (5, 8087724), (6, 6739770), (9, 4493180), (10, 4043862), (12, 3369885), (15, 2695908), (18, 2246590), (20, 2021931), (30, 1347954), (36, 1123295), (45, 898636), (60, 673977), (90, 449318), (180, 224659), (271, 149220), (542, 74610), (813, 49740), (829, 48780), (1084, 37305), (1355, 29844), (1626, 24870), (1658, 24390), (2439, 16580), (2487, 16260), (2710, 14922), (3252, 12435), (3316, 12195), (4065, 9948), (4145, 9756), (4878, 8290), (4974, 8130), (5420, 7461)]