18425960

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:128

約数の個数: 128

約数和(自身を含む): 51840000

約数和(自身を除く): 33414040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 79, 85, 98, 119, 136, 140, 158, 170, 196, 238, 245, 280, 316, 340, 343, 392, 395, 476, 490, 553, 595, 632, 680, 686, 790, 833, 952, 980, 1106, 1190, 1343, 1372, 1580, 1666, 1715, 1960, 2212, 2380, 2686, 2744, 2765, 3160, 3332, 3430, 3871, 4165, 4424, 4760, 5372, 5530, 5831, 6664, 6715, 6860, 7742, 8330, 9401, 10744, 11060, 11662, 13430, 13720, 15484, 16660, 18802, 19355, 22120, 23324, 26860, 27097, 29155, 30968, 33320, 37604, 38710, 46648, 47005, 53720, 54194, 58310, 65807, 75208, 77420, 94010, 108388, 116620, 131614, 135485, 154840, 188020, 216776, 233240, 263228, 270970, 329035, 376040, 460649, 526456, 541940, 658070, 921298, 1083880, 1316140, 1842596, 2303245, 2632280, 3685192, 4606490, 9212980, 18425960]

約数ペア:

[(1, 18425960), (2, 9212980), (4, 4606490), (5, 3685192), (7, 2632280), (8, 2303245), (10, 1842596), (14, 1316140), (17, 1083880), (20, 921298), (28, 658070), (34, 541940), (35, 526456), (40, 460649), (49, 376040), (56, 329035), (68, 270970), (70, 263228), (79, 233240), (85, 216776), (98, 188020), (119, 154840), (136, 135485), (140, 131614), (158, 116620), (170, 108388), (196, 94010), (238, 77420), (245, 75208), (280, 65807), (316, 58310), (340, 54194), (343, 53720), (392, 47005), (395, 46648), (476, 38710), (490, 37604), (553, 33320), (595, 30968), (632, 29155), (680, 27097), (686, 26860), (790, 23324), (833, 22120), (952, 19355), (980, 18802), (1106, 16660), (1190, 15484), (1343, 13720), (1372, 13430), (1580, 11662), (1666, 11060), (1715, 10744), (1960, 9401), (2212, 8330), (2380, 7742), (2686, 6860), (2744, 6715), (2765, 6664), (3160, 5831), (3332, 5530), (3430, 5372), (3871, 4760), (4165, 4424)]