20456201220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3746557}}^1$

素因数の和:3746589

約数の個数: 96

約数和(自身を含む): 70495235328

約数和(自身を除く): 50039034108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 3746557, 7493114, 11239671, 14986228, 18732785, 22479342, 26225899, 37465570, 44958684, 48705241, 52451798, 56198355, 74931140, 78677697, 97410482, 104903596, 112396710, 131129495, 146115723, 157355394, 194820964, 224793420, 243526205, 262258990, 292231446, 314710788, 340936687, 393388485, 487052410, 524517980, 584462892, 681873374, 730578615, 786776970, 974104820, 1022810061, 1363746748, 1461157230, 1573553940, 1704683435, 2045620122, 2922314460, 3409366870, 4091240244, 5114050305, 6818733740, 10228100610, 20456201220]

約数ペア:

[(1, 20456201220), (2, 10228100610), (3, 6818733740), (4, 5114050305), (5, 4091240244), (6, 3409366870), (7, 2922314460), (10, 2045620122), (12, 1704683435), (13, 1573553940), (14, 1461157230), (15, 1363746748), (20, 1022810061), (21, 974104820), (26, 786776970), (28, 730578615), (30, 681873374), (35, 584462892), (39, 524517980), (42, 487052410), (52, 393388485), (60, 340936687), (65, 314710788), (70, 292231446), (78, 262258990), (84, 243526205), (91, 224793420), (105, 194820964), (130, 157355394), (140, 146115723), (156, 131129495), (182, 112396710), (195, 104903596), (210, 97410482), (260, 78677697), (273, 74931140), (364, 56198355), (390, 52451798), (420, 48705241), (455, 44958684), (546, 37465570), (780, 26225899), (910, 22479342), (1092, 18732785), (1365, 14986228), (1820, 11239671), (2730, 7493114), (5460, 3746557)]