72100400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:519

約数の個数: 120

約数和(自身を含む): 191800224

約数和(自身を除く): 119699824

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 25, 34, 40, 46, 50, 68, 80, 85, 92, 100, 115, 136, 170, 184, 200, 230, 272, 340, 368, 391, 400, 425, 460, 461, 575, 680, 782, 850, 920, 922, 1150, 1360, 1564, 1700, 1840, 1844, 1955, 2300, 2305, 3128, 3400, 3688, 3910, 4600, 4610, 6256, 6800, 7376, 7820, 7837, 9200, 9220, 9775, 10603, 11525, 15640, 15674, 18440, 19550, 21206, 23050, 31280, 31348, 36880, 39100, 39185, 42412, 46100, 53015, 62696, 78200, 78370, 84824, 92200, 106030, 125392, 156400, 156740, 169648, 180251, 184400, 195925, 212060, 265075, 313480, 360502, 391850, 424120, 530150, 626960, 721004, 783700, 848240, 901255, 1060300, 1442008, 1567400, 1802510, 2120600, 2884016, 3134800, 3605020, 4241200, 4506275, 7210040, 9012550, 14420080, 18025100, 36050200, 72100400]

約数ペア:

[(1, 72100400), (2, 36050200), (4, 18025100), (5, 14420080), (8, 9012550), (10, 7210040), (16, 4506275), (17, 4241200), (20, 3605020), (23, 3134800), (25, 2884016), (34, 2120600), (40, 1802510), (46, 1567400), (50, 1442008), (68, 1060300), (80, 901255), (85, 848240), (92, 783700), (100, 721004), (115, 626960), (136, 530150), (170, 424120), (184, 391850), (200, 360502), (230, 313480), (272, 265075), (340, 212060), (368, 195925), (391, 184400), (400, 180251), (425, 169648), (460, 156740), (461, 156400), (575, 125392), (680, 106030), (782, 92200), (850, 84824), (920, 78370), (922, 78200), (1150, 62696), (1360, 53015), (1564, 46100), (1700, 42412), (1840, 39185), (1844, 39100), (1955, 36880), (2300, 31348), (2305, 31280), (3128, 23050), (3400, 21206), (3688, 19550), (3910, 18440), (4600, 15674), (4610, 15640), (6256, 11525), (6800, 10603), (7376, 9775), (7820, 9220), (7837, 9200)]