20128937560

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1\times {\mathrm{30467}}^1$

素因数の和:30760

約数の個数: 64

約数和(自身を含む): 46067616000

約数和(自身を除く): 25938678440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 199, 332, 398, 415, 664, 796, 830, 995, 1592, 1660, 1990, 3320, 3980, 7960, 16517, 30467, 33034, 60934, 66068, 82585, 121868, 132136, 152335, 165170, 243736, 304670, 330340, 609340, 660680, 1218680, 2528761, 5057522, 6062933, 10115044, 12125866, 12643805, 20230088, 24251732, 25287610, 30314665, 48503464, 50575220, 60629330, 101150440, 121258660, 242517320, 503223439, 1006446878, 2012893756, 2516117195, 4025787512, 5032234390, 10064468780, 20128937560]

約数ペア:

[(1, 20128937560), (2, 10064468780), (4, 5032234390), (5, 4025787512), (8, 2516117195), (10, 2012893756), (20, 1006446878), (40, 503223439), (83, 242517320), (166, 121258660), (199, 101150440), (332, 60629330), (398, 50575220), (415, 48503464), (664, 30314665), (796, 25287610), (830, 24251732), (995, 20230088), (1592, 12643805), (1660, 12125866), (1990, 10115044), (3320, 6062933), (3980, 5057522), (7960, 2528761), (16517, 1218680), (30467, 660680), (33034, 609340), (60934, 330340), (66068, 304670), (82585, 243736), (121868, 165170), (132136, 152335)]