18948930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:672

約数の個数: 128

約数和(自身を含む): 61157376

約数和(自身を除く): 42208446

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 26, 30, 33, 35, 39, 42, 55, 65, 66, 70, 77, 78, 91, 105, 110, 130, 143, 154, 165, 182, 195, 210, 231, 273, 286, 330, 385, 390, 429, 455, 462, 546, 631, 715, 770, 858, 910, 1001, 1155, 1262, 1365, 1430, 1893, 2002, 2145, 2310, 2730, 3003, 3155, 3786, 4290, 4417, 5005, 6006, 6310, 6941, 8203, 8834, 9465, 10010, 13251, 13882, 15015, 16406, 18930, 20823, 22085, 24609, 26502, 30030, 34705, 41015, 41646, 44170, 48587, 49218, 57421, 66255, 69410, 82030, 90233, 97174, 104115, 114842, 123045, 132510, 145761, 172263, 180466, 208230, 242935, 246090, 270699, 287105, 291522, 344526, 451165, 485870, 541398, 574210, 631631, 728805, 861315, 902330, 1263262, 1353495, 1457610, 1722630, 1894893, 2706990, 3158155, 3789786, 6316310, 9474465, 18948930]

約数ペア:

[(1, 18948930), (2, 9474465), (3, 6316310), (5, 3789786), (6, 3158155), (7, 2706990), (10, 1894893), (11, 1722630), (13, 1457610), (14, 1353495), (15, 1263262), (21, 902330), (22, 861315), (26, 728805), (30, 631631), (33, 574210), (35, 541398), (39, 485870), (42, 451165), (55, 344526), (65, 291522), (66, 287105), (70, 270699), (77, 246090), (78, 242935), (91, 208230), (105, 180466), (110, 172263), (130, 145761), (143, 132510), (154, 123045), (165, 114842), (182, 104115), (195, 97174), (210, 90233), (231, 82030), (273, 69410), (286, 66255), (330, 57421), (385, 49218), (390, 48587), (429, 44170), (455, 41646), (462, 41015), (546, 34705), (631, 30030), (715, 26502), (770, 24609), (858, 22085), (910, 20823), (1001, 18930), (1155, 16406), (1262, 15015), (1365, 13882), (1430, 13251), (1893, 10010), (2002, 9465), (2145, 8834), (2310, 8203), (2730, 6941), (3003, 6310), (3155, 6006), (3786, 5005), (4290, 4417)]