78245860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 214502400

約数和(自身を除く): 136256540

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 121, 124, 140, 149, 154, 155, 217, 220, 242, 298, 308, 310, 341, 385, 434, 484, 596, 605, 620, 682, 745, 770, 847, 868, 1043, 1085, 1210, 1364, 1490, 1540, 1639, 1694, 1705, 2086, 2170, 2387, 2420, 2980, 3278, 3388, 3410, 3751, 4172, 4235, 4340, 4619, 4774, 5215, 6556, 6820, 7502, 8195, 8470, 9238, 9548, 10430, 11473, 11935, 15004, 16390, 16940, 18029, 18476, 18755, 20860, 22946, 23095, 23870, 26257, 32333, 32780, 36058, 37510, 45892, 46190, 47740, 50809, 52514, 57365, 64666, 72116, 75020, 90145, 92380, 101618, 105028, 114730, 126203, 129332, 131285, 161665, 180290, 203236, 229460, 252406, 254045, 262570, 323330, 355663, 360580, 504812, 508090, 525140, 558899, 631015, 646660, 711326, 1016180, 1117798, 1262030, 1422652, 1778315, 2235596, 2524060, 2794495, 3556630, 3912293, 5588990, 7113260, 7824586, 11177980, 15649172, 19561465, 39122930, 78245860]

約数ペア:

[(1, 78245860), (2, 39122930), (4, 19561465), (5, 15649172), (7, 11177980), (10, 7824586), (11, 7113260), (14, 5588990), (20, 3912293), (22, 3556630), (28, 2794495), (31, 2524060), (35, 2235596), (44, 1778315), (55, 1422652), (62, 1262030), (70, 1117798), (77, 1016180), (110, 711326), (121, 646660), (124, 631015), (140, 558899), (149, 525140), (154, 508090), (155, 504812), (217, 360580), (220, 355663), (242, 323330), (298, 262570), (308, 254045), (310, 252406), (341, 229460), (385, 203236), (434, 180290), (484, 161665), (596, 131285), (605, 129332), (620, 126203), (682, 114730), (745, 105028), (770, 101618), (847, 92380), (868, 90145), (1043, 75020), (1085, 72116), (1210, 64666), (1364, 57365), (1490, 52514), (1540, 50809), (1639, 47740), (1694, 46190), (1705, 45892), (2086, 37510), (2170, 36058), (2387, 32780), (2420, 32333), (2980, 26257), (3278, 23870), (3388, 23095), (3410, 22946), (3751, 20860), (4172, 18755), (4235, 18476), (4340, 18029), (4619, 16940), (4774, 16390), (5215, 15004), (6556, 11935), (6820, 11473), (7502, 10430), (8195, 9548), (8470, 9238)]