40801020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{181}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 131415648

約数和(自身を除く): 90614628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 181, 195, 204, 221, 255, 260, 289, 340, 362, 390, 442, 510, 543, 578, 663, 724, 780, 867, 884, 905, 1020, 1086, 1105, 1156, 1326, 1445, 1734, 1810, 2172, 2210, 2353, 2652, 2715, 2890, 3077, 3315, 3468, 3620, 3757, 4335, 4420, 4706, 5430, 5780, 6154, 6630, 7059, 7514, 8670, 9231, 9412, 10860, 11271, 11765, 12308, 13260, 14118, 15028, 15385, 17340, 18462, 18785, 22542, 23530, 28236, 30770, 35295, 36924, 37570, 40001, 45084, 46155, 47060, 52309, 56355, 61540, 70590, 75140, 80002, 92310, 104618, 112710, 120003, 141180, 156927, 160004, 184620, 200005, 209236, 225420, 240006, 261545, 313854, 400010, 480012, 523090, 600015, 627708, 680017, 784635, 800020, 1046180, 1200030, 1360034, 1569270, 2040051, 2400060, 2720068, 3138540, 3400085, 4080102, 6800170, 8160204, 10200255, 13600340, 20400510, 40801020]

約数ペア:

[(1, 40801020), (2, 20400510), (3, 13600340), (4, 10200255), (5, 8160204), (6, 6800170), (10, 4080102), (12, 3400085), (13, 3138540), (15, 2720068), (17, 2400060), (20, 2040051), (26, 1569270), (30, 1360034), (34, 1200030), (39, 1046180), (51, 800020), (52, 784635), (60, 680017), (65, 627708), (68, 600015), (78, 523090), (85, 480012), (102, 400010), (130, 313854), (156, 261545), (170, 240006), (181, 225420), (195, 209236), (204, 200005), (221, 184620), (255, 160004), (260, 156927), (289, 141180), (340, 120003), (362, 112710), (390, 104618), (442, 92310), (510, 80002), (543, 75140), (578, 70590), (663, 61540), (724, 56355), (780, 52309), (867, 47060), (884, 46155), (905, 45084), (1020, 40001), (1086, 37570), (1105, 36924), (1156, 35295), (1326, 30770), (1445, 28236), (1734, 23530), (1810, 22542), (2172, 18785), (2210, 18462), (2353, 17340), (2652, 15385), (2715, 15028), (2890, 14118), (3077, 13260), (3315, 12308), (3468, 11765), (3620, 11271), (3757, 10860), (4335, 9412), (4420, 9231), (4706, 8670), (5430, 7514), (5780, 7059), (6154, 6630)]