201915220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2\times {\mathrm{173}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 466235784

約数和(自身を除く): 264320564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 173, 260, 268, 335, 346, 670, 692, 865, 871, 1340, 1730, 1742, 2249, 3460, 3484, 4355, 4489, 4498, 8710, 8978, 8996, 11245, 11591, 17420, 17956, 22445, 22490, 23182, 44890, 44980, 46364, 57955, 58357, 89780, 115910, 116714, 150683, 231820, 233428, 291785, 301366, 583570, 602732, 753415, 776597, 1167140, 1506830, 1553194, 3013660, 3106388, 3882985, 7765970, 10095761, 15531940, 20191522, 40383044, 50478805, 100957610, 201915220]

約数ペア:

[(1, 201915220), (2, 100957610), (4, 50478805), (5, 40383044), (10, 20191522), (13, 15531940), (20, 10095761), (26, 7765970), (52, 3882985), (65, 3106388), (67, 3013660), (130, 1553194), (134, 1506830), (173, 1167140), (260, 776597), (268, 753415), (335, 602732), (346, 583570), (670, 301366), (692, 291785), (865, 233428), (871, 231820), (1340, 150683), (1730, 116714), (1742, 115910), (2249, 89780), (3460, 58357), (3484, 57955), (4355, 46364), (4489, 44980), (4498, 44890), (8710, 23182), (8978, 22490), (8996, 22445), (11245, 17956), (11591, 17420)]