21370870540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{8951}}^1$

素因数の和:9143

約数の個数: 96

約数和(自身を含む): 48486896640

約数和(自身を除く): 27116026100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 103, 122, 190, 206, 244, 305, 380, 412, 515, 610, 1030, 1159, 1220, 1957, 2060, 2318, 3914, 4636, 5795, 6283, 7828, 8951, 9785, 11590, 12566, 17902, 19570, 23180, 25132, 31415, 35804, 39140, 44755, 62830, 89510, 119377, 125660, 170069, 179020, 238754, 340138, 477508, 546011, 596885, 680276, 850345, 921953, 1092022, 1193770, 1700690, 1843906, 2184044, 2387540, 2730055, 3401380, 3687812, 4609765, 5460110, 9219530, 10374209, 10920220, 17517107, 18439060, 20748418, 35034214, 41496836, 51871045, 56239133, 70068428, 87585535, 103742090, 112478266, 175171070, 207484180, 224956532, 281195665, 350342140, 562391330, 1068543527, 1124782660, 2137087054, 4274174108, 5342717635, 10685435270, 21370870540]

約数ペア:

[(1, 21370870540), (2, 10685435270), (4, 5342717635), (5, 4274174108), (10, 2137087054), (19, 1124782660), (20, 1068543527), (38, 562391330), (61, 350342140), (76, 281195665), (95, 224956532), (103, 207484180), (122, 175171070), (190, 112478266), (206, 103742090), (244, 87585535), (305, 70068428), (380, 56239133), (412, 51871045), (515, 41496836), (610, 35034214), (1030, 20748418), (1159, 18439060), (1220, 17517107), (1957, 10920220), (2060, 10374209), (2318, 9219530), (3914, 5460110), (4636, 4609765), (5795, 3687812), (6283, 3401380), (7828, 2730055), (8951, 2387540), (9785, 2184044), (11590, 1843906), (12566, 1700690), (17902, 1193770), (19570, 1092022), (23180, 921953), (25132, 850345), (31415, 680276), (35804, 596885), (39140, 546011), (44755, 477508), (62830, 340138), (89510, 238754), (119377, 179020), (125660, 170069)]