20145207220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1\times {\mathrm{761}}^1$

素因数の和:1321

約数の個数: 96

約数和(自身を含む): 44131723776

約数和(自身を除く): 23986516556

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 83, 148, 166, 185, 332, 370, 415, 431, 740, 761, 830, 862, 1522, 1660, 1724, 2155, 3044, 3071, 3805, 4310, 6142, 7610, 8620, 12284, 15220, 15355, 15947, 28157, 30710, 31894, 35773, 56314, 61420, 63163, 63788, 71546, 79735, 112628, 126326, 140785, 143092, 159470, 178865, 252652, 281570, 315815, 318940, 327991, 357730, 563140, 631630, 655982, 715460, 1263260, 1311964, 1323601, 1639955, 2337031, 2647202, 3279910, 4674062, 5294404, 6559820, 6618005, 9348124, 11685155, 12135667, 13236010, 23370310, 24271334, 26472020, 27223253, 46740620, 48542668, 54446506, 60678335, 108893012, 121356670, 136116265, 242713340, 272232530, 544465060, 1007260361, 2014520722, 4029041444, 5036301805, 10072603610, 20145207220]

約数ペア:

[(1, 20145207220), (2, 10072603610), (4, 5036301805), (5, 4029041444), (10, 2014520722), (20, 1007260361), (37, 544465060), (74, 272232530), (83, 242713340), (148, 136116265), (166, 121356670), (185, 108893012), (332, 60678335), (370, 54446506), (415, 48542668), (431, 46740620), (740, 27223253), (761, 26472020), (830, 24271334), (862, 23370310), (1522, 13236010), (1660, 12135667), (1724, 11685155), (2155, 9348124), (3044, 6618005), (3071, 6559820), (3805, 5294404), (4310, 4674062), (6142, 3279910), (7610, 2647202), (8620, 2337031), (12284, 1639955), (15220, 1323601), (15355, 1311964), (15947, 1263260), (28157, 715460), (30710, 655982), (31894, 631630), (35773, 563140), (56314, 357730), (61420, 327991), (63163, 318940), (63788, 315815), (71546, 281570), (79735, 252652), (112628, 178865), (126326, 159470), (140785, 143092)]