28988908

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 60360720

約数和(自身を除く): 31371812

約数列:

[1, 2, 4, 13, 19, 26, 37, 38, 52, 61, 74, 76, 122, 148, 169, 244, 247, 338, 481, 494, 676, 703, 793, 962, 988, 1159, 1406, 1586, 1924, 2257, 2318, 2812, 3172, 3211, 4514, 4636, 6253, 6422, 9028, 9139, 10309, 12506, 12844, 15067, 18278, 20618, 25012, 29341, 30134, 36556, 41236, 42883, 58682, 60268, 85766, 117364, 118807, 171532, 195871, 237614, 381433, 391742, 475228, 557479, 762866, 783484, 1114958, 1525732, 2229916, 7247227, 14494454, 28988908]

約数ペア:

[(1, 28988908), (2, 14494454), (4, 7247227), (13, 2229916), (19, 1525732), (26, 1114958), (37, 783484), (38, 762866), (52, 557479), (61, 475228), (74, 391742), (76, 381433), (122, 237614), (148, 195871), (169, 171532), (244, 118807), (247, 117364), (338, 85766), (481, 60268), (494, 58682), (676, 42883), (703, 41236), (793, 36556), (962, 30134), (988, 29341), (1159, 25012), (1406, 20618), (1586, 18278), (1924, 15067), (2257, 12844), (2318, 12506), (2812, 10309), (3172, 9139), (3211, 9028), (4514, 6422), (4636, 6253)]