78896860

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 120

約数和(自身を含む): 203285376

約数和(自身を除く): 124388516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 53, 62, 70, 98, 106, 124, 140, 155, 196, 212, 217, 245, 265, 310, 343, 371, 434, 490, 530, 620, 686, 742, 868, 980, 1060, 1085, 1372, 1484, 1519, 1643, 1715, 1855, 2170, 2401, 2597, 3038, 3286, 3430, 3710, 4340, 4802, 5194, 6076, 6572, 6860, 7420, 7595, 8215, 9604, 10388, 10633, 11501, 12005, 12985, 15190, 16430, 18179, 21266, 23002, 24010, 25970, 30380, 32860, 36358, 42532, 46004, 48020, 51940, 53165, 57505, 72716, 74431, 80507, 90895, 106330, 115010, 127253, 148862, 161014, 181790, 212660, 230020, 254506, 297724, 322028, 363580, 372155, 402535, 509012, 563549, 636265, 744310, 805070, 1127098, 1272530, 1488620, 1610140, 2254196, 2545060, 2817745, 3944843, 5635490, 7889686, 11270980, 15779372, 19724215, 39448430, 78896860]

約数ペア:

[(1, 78896860), (2, 39448430), (4, 19724215), (5, 15779372), (7, 11270980), (10, 7889686), (14, 5635490), (20, 3944843), (28, 2817745), (31, 2545060), (35, 2254196), (49, 1610140), (53, 1488620), (62, 1272530), (70, 1127098), (98, 805070), (106, 744310), (124, 636265), (140, 563549), (155, 509012), (196, 402535), (212, 372155), (217, 363580), (245, 322028), (265, 297724), (310, 254506), (343, 230020), (371, 212660), (434, 181790), (490, 161014), (530, 148862), (620, 127253), (686, 115010), (742, 106330), (868, 90895), (980, 80507), (1060, 74431), (1085, 72716), (1372, 57505), (1484, 53165), (1519, 51940), (1643, 48020), (1715, 46004), (1855, 42532), (2170, 36358), (2401, 32860), (2597, 30380), (3038, 25970), (3286, 24010), (3430, 23002), (3710, 21266), (4340, 18179), (4802, 16430), (5194, 15190), (6076, 12985), (6572, 12005), (6860, 11501), (7420, 10633), (7595, 10388), (8215, 9604)]